matiex | cd4d29b138b75a9d1a10fa7d724168ae155ef7779d97c042e8014b9ae6f93087

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-04-2024 01:49

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General

Target

$PLUGINSDIR/lqwipxz.dll
Size

17KB
MD5

148e2440033d4c9c35f68f4072ba5d1e
SHA1

480b6d0a378fa7e785e79de7e0f757dd7e8124e3
SHA256

47094fa8accf250c8df2021a0180140be6f1091415d44e9927e5ed6ba6c60bb4
SHA512

1a272ef57ad29b3481a1f18530168d1af7cc6a20bef32249412e0eadcc7dbd306157c3b8fca971ac21bde9cf7229370124cce29038bd3cc1ef93a03008c0367d
SSDEEP

384:mD4wra/y5RdIX0lcjIbqjC+/6ztBp9+JTjL:K4wrNp60lC8+C+/OpuTj

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main payload 7 IoCs

Processes:

resource	yara_rule
behavioral3/memory/2704-3-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-6-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-8-0x0000000000400000-0x0000000000484000-memory.dmp	family_matiex
behavioral3/memory/2704-10-0x0000000000B30000-0x0000000000BA6000-memory.dmp	family_matiex
behavioral3/memory/2704-12-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex
behavioral3/memory/2704-15-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex
behavioral3/memory/2704-16-0x0000000002280000-0x00000000022C0000-memory.dmp	family_matiex

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

5 2704 rundll32.exe
9 2704 rundll32.exe
11 2704 rundll32.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

flow	pid	process
5	2704	rundll32.exe
9	2704	rundll32.exe
11	2704	rundll32.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2516 set thread context of 2704 2516 rundll32.exe rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2440 2704 WerFault.exe rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2704 rundll32.exe

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

description	pid	process	target process
PID 2516 set thread context of 2704	2516	rundll32.exe	rundll32.exe

pid	pid_target	process	target process
2440	2704	WerFault.exe	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2704	rundll32.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 1900 wrote to memory of 2516	1900	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2516 wrote to memory of 2704	2516	rundll32.exe	rundll32.exe
PID 2704 wrote to memory of 2440	2704	rundll32.exe	WerFault.exe
PID 2704 wrote to memory of 2440	2704	rundll32.exe	WerFault.exe
PID 2704 wrote to memory of 2440	2704	rundll32.exe	WerFault.exe
PID 2704 wrote to memory of 2440	2704	rundll32.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

outlook_win_path 1 IoCs

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1900

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2516

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\lqwipxz.dll,#1
3⤵
- Blocklisted process makes network request
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 1800
4⤵
- Program crash
PID:2440

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2516-4-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-1-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-2-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2516-0-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2704-8-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-6-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-3-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2704-9-0x0000000073D50000-0x000000007443E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-10-0x0000000000B30000-0x0000000000BA6000-memory.dmp

Filesize
472KB

Download
memory/2704-11-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-12-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-13-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-14-0x0000000073D50000-0x000000007443E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-15-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download
memory/2704-16-0x0000000002280000-0x00000000022C0000-memory.dmp

Filesize
256KB

Download